Dylan Kane likes his math curriculum. But there’s one important piece missing, he says. The 7th grade math teacher in Leadville, Colo., uses a program that teaches math skills through real-world ...

Animal psychologists have found that giraffes can mentally combine small sums of objects, but can't perform the subtractive equivalent.

Ever looked at a Rubik’s Cube and felt a mix of curiosity and frustration? The colorful puzzle has captivated millions since its introduction in the 1970s, becoming a symbol of both challenge and ...

Jeff Smith's Math Puzzle for June 26, 2026 – Claymation plays rough, morphs into solid geometry quiz. The post Math Puzzle ...

Stop letting wet ice cubes dilute your favorite beverages with these essential tips for keeping your drinks perfectly chilled. Iran declares 'superpower' status after defeating 'two nuclear powers' ...

I got my first 4-piece white set of Well Traveled Compression Packing Cubes 3+ years ago, and I’ve taken them on pretty much every trip since. In fact, they’ve low-key seen the world at this point; ...

Abstract: The Heterogeneous Fleet Vehicle Routing Problem (HFVRP) aims to find optimal routes for vehicles with different capacities and costs, and is common in real-world applications. Total cost and ...

Abstract: The Multi-depot Vehicle Routing Problem with Uncertain Demand (MD-VRPUD) can be modeled as a bi-level optimization problem (BLOP), because it requires both assigning customers to different ...

Few things amaze me like people who can solve a Rubik's Cube. Sure, lots of things amaze me more — mountains, elaborate water features, how my dog sits on the couch and watches Unsolved Mysteries like ...